Capacitors are usually the problem after sitting for years. Never know, could be fine.
My dad’s first business computer was a Trs80 with the 8 inch floppy drive from the mid 1980’s. It hasn’t been used in 20+ yrs. A couple of yrs ago he ran across it in storage and plugged it in and flipped the switch, on it came whirling and grinding, worked like it did when he shut it off decades ago.