It runs on tablets and there are specific distros made for tablets with improved support and features. There are also linux-only tablets being sold.
And I don’t see what problems you’re trading for, ad I at least never really had any Problem on Linux that I couldn’t fix in some way.
My experience with hosting mail was very good. I host my mail using Mailu, which is just a docker compose file and premade scripts for the usual mail stack software (Postfix, Dovecot, Nginx etc.). I hosy it on my home network using a raspberry pi. I score 9.8 on mail tester and my mail rarely ever lands in spam.
In total I spent maybe 3 hours setting everything up including my domain and 2 hours debugging issues. I honestly recommend self hosting mail.
My VMs with RDP using RAILS beg to differ