Using GPL software: yes. Totally fine. The rise of Linux and all that jazz.
Incorporating any part of GPL software _into_ other products? Pretty much doesn’t happen. Every company I’ve ever worked for has said “do not bring LGPL or GPL software into the codebase.” When it comes to commercial software, be it cloud based, or downloadable, you’re not going to find much that tries to incorporate GPL stuff. You just won’t.
1. You incorporate GPL software and hope that no one notices and/or no one challenges. This is the most popular approach, and it’s quite successful, actually.
2. You cease to be a proprietary software company. Less popular, but an option.
Using GPL software: yes. Totally fine. The rise of Linux and all that jazz.
Incorporating any part of GPL software _into_ other products? Pretty much doesn’t happen. Every company I’ve ever worked for has said “do not bring LGPL or GPL software into the codebase.” When it comes to commercial software, be it cloud based, or downloadable, you’re not going to find much that tries to incorporate GPL stuff. You just won’t.