Honest answer from someone who’s used Linux as a daily driver for years:

Actually annoying:

• Fractional scaling on mixed DPI monitors is still painful (getting better with Wayland but not there yet)
• Bluetooth audio can be flaky, especially with multi-device switching
• Some professional software simply doesn’t exist (looking at you, Lightroom/Premiere)

Annoying but solvable:

• Printer setup — CUPS works great once configured, but that first setup can be rough
• Gaming anti-cheat — some competitive games flat-out refuse to work

Not actually problems, just different:

• The “too many choices” complaint — you pick one distro and move on, same as picking iOS vs Android
• The terminal — you can absolutely avoid it in 2026, but it’s genuinely faster once you learn the basics