Yeah, Solasta has implemented this pretty well. They've implemented the "shield spell as reaction" rule and implemented a Solasta version of war caster feat which allows you to take 10 hp of damage before having to make a concentration check so you get two chances to maintain concentration even before a check. My mage kept concentration even when being level drained by a vampire.
Also when BG3 allows us to roll for our stats, lots of us will have casters with insanely high constitution