The easiest way would be subscribing to the communities you want and then using the subscribed feed instead of the all feed
Some frontends (mostly the apps) have filters you can use to filter content but the main frontend doesn't currently apart from blocking the communities
An alternate thing to do could be to use the local feed in the instance that primarily has the content you want. Isnt doable for all types of content since not everything has a topic based instance for it and would require having a new account if you want to interact but theres things such as mander.xyz for science, programming.dev for programming/hardware/etc. topics, etc.
I looked at the community list in programming.dev (from https://programming.dev/communities) sorted by active users per month and noted down the instances for the top 100 communities
its using google sheets
going to recount with lemm.ees community list in a sec since theyre federated with hexbear
Manually counted communities in the top 100 per instance and threw it into another pie chart (for active users / month)
This also seems to be different than the results gotten from lemmyverse as the lemmyverse data hasnt been updated in 11 days according to that site
A bunch of instances gained or lost some coms in the top 100 from variance of things happening in the last week
(the eight instances that it decided to not give labels to that have 1 community are feddit.uk, lemmy.zip, beehaw.org, lemdro.id, ttrpg.network, lemmy.wtf, lemmy.blahaj.zone, mander.xyz)
edit: updated graph to be more accurate users/month counts
Seems like lemmyverse doesnt have the instance listed at all for some reason, assuming a crawling issue. I reported it on their repository. Would be new since I remember it showing the instance before
I checked your post history, are you talking about this post from a year ago? https://programming.dev/post/749664 (that one has only a couple downvotes which usually is standard as most posts get a couple downvotes though)
Its the kind of thing thats very difficult to solve since not everyone gets it and seems like it pops up randomly (havent been able to clearly reproduce it yet)
Were you also on mobile firefox using the site? Or was the firefox you were using on pc
I have some personal spots to donate but theyre not connected to the instance so the snowe github sponsor donation is the only official instance one atm until we add some new spots
Since mods and admins can't control what gets hashtagged it can hashtag the completely wrong things
For example we have a community called c/loud. This is a cloud community but will be hashtagged with #loud
We also have a community called c/meta and similar other communities but the hashtag should be something similar to programming.dev meta since meta itself doesn't make sense. Currently its assuming you know what scope of meta you're in due to it being attached to the instance but hashtags are free for alls so the hashtag is going to be impossible to follow (other communities that fall within this are comics, events, books as they are programming or programming.dev specific which is currently assumed due to the url)
Programming.dev one is currently stuck on the last version we can upgrade to (and looks like lemmings and reddthat as well) since any upgrades just makes photon a white screen due to the tooling upgrade
The easiest way would be subscribing to the communities you want and then using the subscribed feed instead of the all feed
Some frontends (mostly the apps) have filters you can use to filter content but the main frontend doesn't currently apart from blocking the communities
An alternate thing to do could be to use the local feed in the instance that primarily has the content you want. Isnt doable for all types of content since not everything has a topic based instance for it and would require having a new account if you want to interact but theres things such as mander.xyz for science, programming.dev for programming/hardware/etc. topics, etc.