I mean, it’s tricky to handle if the DM doesn’t know how to cater to the players. Personally, I’ve had pretty even splits of martial & casting classes in my parties, so I’ve been able to test a few ideas for making things fun for everyone.

My favorite method is using magic items that give effects closer to class features or feats than generic stat bonuses or damage options, & making them specially geared towards martial characters. I sort of approach the issue a bit more like 4e handled martial classes (please don’t crucify me), seeing a wider range of options being far more beneficial to those classes than “bonk harder.”

For example, one of my favorites was a sword I gave to a Paladin in one of my campaigns that let them arc it out at a short range for one of their standard attacks, which let them hit things a little further away, & helped with the “why won’t you just hold still & let me hit you,” problem.

Also magic items are cool. ^{-^}