The only differences stated there are:
The removal of the 30 day sync limit on some categories, it's unlikely to be changed as the restriction exists because of the requests limit implemented by cg on SG.
Allowing to not show giveaway descriptions, this has been discussed numerous times and will probably never be added.

Also it's called A-ESGST not ESGST+ 😅

Discovered this awesome addon 2 weeks ago.
It's all great apart ONE thing.

When I enter a giveaway quickly from the mainpage, if the raffle has a description, a popup comes up.
It's annoying and despite looking through the settings, I couldn't find a way to turn that off.

Please help

How to disable the popup when entering a giveaway with a description?
How to enable a window during synchronization that will show which games are being synchronized now? (numbers or names)

From the feature's description:

Adds an element [Points] below a giveaway's start time (in any page) that shows how many points you would have to spend to win the giveaway.
The points are calculated by rounding up (using 2 decimals) the result of the following formula: number_of_points / number_of_copies * number_of_entries.

So, I should turn two those options on?
"Cache repeated descriptions from the same creator for 1 hour and only show them once."
"Filter descriptions.

Yes. 2nd one probably enables the "Add Description To Filters" button when there's a description (comment) popping up.
Not sure how many descriptions you can add though.
I have this, which might be the default:
.|(bestof|(g(ood)?)?)(l(uck)?)?(h(ave)?)?(f(un)?)?|enjoy|(h(umble)?)?(b(undle)?)?(g(ift)?)?(l(ink)?)?

You can check this repository, where @rafaelgomesxyz implements the scraping logic, the ESGST plugin will prioritize getting game information from ESGST server, before querying Steam directly.
https://github.com/rafaelgomesxyz/esgst-server

Please beware that ESGST checks if a game has Steam trading card or not based on its game tag, which is often incorrect, please see this discussion.
IMHO, a more accurate approach is parsing Steam protobuf, like SteamDB did.

Look at this game, it drops cards but doesn't have Steam trading cards tag.
Searching on Github for item_class, item_description, and item_name, you will find some useful resources.
For example, below link.
https://github.com/SteamDatabase/Protobufs/blob/master/webui/service_quest.proto

1. Option Trading cards turned to SHOW ONLY, but there are still games with no cards in list? Why?
   screenshot
2. Can developer, please, make an option to turn off descriptions at all after entering giveaway?

Is there an option to enter some "mask" to filter to hide ALL DESCRIPTION POP-UPS?

For giveaway heading name, you can use this filter rule in uBlock Origin:
steamgifts.com##.giveaway__heading .giveaway__heading__name:style(font-size:16px !important;)

For navigation menu:

steamgifts.com##.nav__button:style(font-size:11px !important; line-height:29px !important;)
steamgifts.com##.nav__row__summary__name:style(font-size:11px !important; line-height:15px !important;)
steamgifts.com##.nav__row__summary__description:style(font-size:11px !important; line-height:13px !important;)
steamgifts.com##.nav__absolute-dropdown:style(width:275px !important;)

Since you're using mobile, how about the unofficial SG client?

Right, thanks very much for that.

Every time I load the same page of games, the same yellow hourglasses appear - which doesn't seem to make sense with the description in the link. As far as you know, would the be normal, correct functionality?

Edit: It's like it isn't caching at all, and needs to load all the information every time. Seems off to me.

And I now notice, it isn't doing it for all games. There's a couple where the information is available and it doesn't need to load anything, but the majority have to load every single time.

If you scroll to the end of the tooltip, you will see some examples:

And here's an example using separate details for each giveaway:

Portal [countries="BR, US"] [level="5"]
Portal XXXXX-XXXXX-XXXXX [whoCanEnter="groups"] [groups="Playing Appreciated"]
YYYYY-YYYYY-YYYYY Portal [whoCanEnter="groups"] [groups="My Whitelist"]
Portal (2 Copies) [startTime="Apr 1, 2018 9:00 am"] [endTime="Apr 11, 2018 15:00 pm"] [whoCanEnter="invite_only"]
Portal ZZZZZ-ZZZZZ-ZZZZZ [level="8"] [description="Appreciation for high level users.\n\nEnjoy!"]

Thanks! I'm dumb and blind. I didn't realize the tooltip was scrollable and I didn't read the syntax description carefully enough.

You can't. It's by design. rafaelgomesxyz decided against it. You're supposed to read giveaway descriptions.