Maybe Ardour can fit? You can pay $1 or more for the binary or compile it yourself.
Reaper is the best there is for Linux. There are other alternatives of you want FOSS, but they are not as good.
Not a pro DAW user. I use it to just substitute Adobe Audition to some extend. Tenacity is used most of the time.
Ardour is very appealing to me because it supports VST3! There is a ‘wrapper’ available to make VST3 compatible with Linux, but that’s just adding the complexity and potentially bugginess that I’d be trying to escape from.
FYI I am using reaper on Linux and I have all my windows plug-ins working through yabridge (32 and 64 bit vst/vst3), focusrite interfaces don’t even need special drivers, that and my alesis midi keyboard just worked when I plugged them in. I just started using Linux semi-permanently at home last week for the first time (though I am a developer)