Moving tooling is Hard, and the OSS stuff frankly sucks in comparison.
Give the Affinity [1] suite a serious look. It's not Photoshop or Illustrator, but for many users it really is a functional alternative and much of the tooling works similarly enough that it's usable (unlike much of the OSS stuff which just gets maddening). Pricing is also very sane.
I was a casual user of Illustrator but got tired of the monthly subscription and it wasn't really worth the money since I would only use it like 5 times a month.
I moved to Affinity designer about 4 years ago and I love it.
I use Affinity Designer for Mac (an Illustrator alternative). (90 day free trial, and then $40 one time after that - for lifetime ownership). So done with Adobe - their software is a total system hog, and they are now sketchy as an organization.
Give the Affinity [1] suite a serious look. It's not Photoshop or Illustrator, but for many users it really is a functional alternative and much of the tooling works similarly enough that it's usable (unlike much of the OSS stuff which just gets maddening). Pricing is also very sane.
[1] https://affinity.serif.com/en-us/