The worst part is that this is what many end-users want. We every so often get some strong pushback on the KMK (mechanical keyboard) Firmware project over my admittedly-dogmatic insistence on using Matrix (and otherwise trying to move further towards the Free Software Needs Free Tools [1] ideal world). Roughly paraphrased, "Well relatively few people have a Matrix account but a ton of folks are already on Discord, why do you make the Matrix only officially supported platform and have a flakey-and-maybe-five-8s-uptime bridge to Discord as an olive branch?" Because it's a GPL project with no corporate backing and no need to add dependence on another corporate tool (using GitHub for VCS and CI was, IMO with retrospect, a mistake too).

I've personally started taking a "if your project only offers me Slack and Discord as first-class avenues to get help, I consider it unsupported" stance on FOSS projects lately. It's bad enough that I have to use Slack for work and will never really have a say in that, don't make me also use it for my hobbies.

Maybe spending my adolescence in the era of IRC, of numerous IM protocols all accessible via libpurple+Pidgin/Adium, and of somewhat-open XMPP federation spoiled me. I clearly wasn't meant for this hyper-corporate modern flavor of the internet.

[1] https://mako.cc/writing/hill-free_tools.html